Ayu Misaki's fist-fighting legacy is now inherited by Aya Shiomi, known as the iron woman of fist fucking, and this time she faces off against an actress with zero fist experience in this unique setup! Her opponent is Monaka Sengoku, a local underground idol who started performing as a child and continues her idol activities into adulthood. Confident and fearless on stage, her erotic charisma stands out. Years of dance have given her strong stamina and core strength, along with high erotic potential—evident from her past appearance in the BDSM video "Impalement Torture." Also, while she's privately interested in lesbianism and has extensive experience, she's never taken on the dominant "tachi" role in a lesbian context, making her casting especially intriguing. The highlight of this battle is seeing Monaka dominated by Shiomin in hardcore lesbian fist action! In the first scene, Shiomin slowly but intensely pleasures Monaka with sticky lesbian sex, their kissing deeply erotic. She then torments Monaka with pain, bringing her to climax with four fingers, followed by intense stimulation using a vibrator, nipple spanking, and lower abdominal slaps that deliver powerful pleasure. Monaka, who enjoys pain, climaxes repeatedly while crying from spanking. Next, she's tied in a spreader chair in a wide M-shaped split, her lower body lewdly exposed. Shiomin's face slaps and nipple biting make Monaka's pussy drip wet with arousal. Shiomin coats her right hand in thick lotion and penetrates Monaka's pussy—easily inserting three, then four fingers, folding her thumb to fit five. As the thickest part of her hand thrusts into Monaka's cunt, she screams, "My pussy is tearing! It hurts, it hurts!" Then, as the fist plunges deep inside, her face twists into an expression never seen before, climaxing repeatedly from the fist fucking. The moment pain transforms into pleasure is irresistible. Next, Monaka is suspended in an M-shaped aerial bondage, receiving fist training mid-air. Her pussy, already addicted to the pleasure of fist fucking, easily swallows the fist even while hanging. She goes wild from ass spanking and pussy slapping, climaxing over and over. Despite this being her first time experiencing fist fucking, her depraved reaction is unbelievable. In the final stage, an all-out lesbian fist battle! Monaka sucks Shiomin's pussy and inserts a fist with her right hand, drenched in lube. Seeing Shiomin climax repeatedly from the fist, Monaka reaches peak excitement—plunging her fist deep while choking Shiomin's neck, and finally both simultaneously ram fists into each other's cunts, connected by their fists as they climax endlessly. Two greedy female beasts insatiably devour their desires! The lesbian fist action between Monaka Sengoku and Aya Shiomi is unbelievably erotic!